3 papers
quant-ph2025
Quantum entanglement and contextuality with complexifications of root system
Alexander Yu. Vlasov
The Witting configuration with 40 complex rays was suggested as a possible reformulation of Penrose model with two spin-3/2 systems based on geometry of dodecahedron and used for a…
quant-ph2025
Scheme of quantum communications based on Witting polytope
Alexander Yu. Vlasov
Currently, generalizations of quantum communication protocols from qubits to systems with higher-dimensional state spaces (qudits) typically use mutually unbiased bases (MUB). The…
quant-ph2024
Penrose dodecahedron, Witting configuration and quantum entanglement
Alexander Yu. Vlasov
A model with two entangled spin-3/2 particles based on geometry of dodecahedron was suggested by Roger Penrose for formulation of analogue of Bell theorem "without probabilities."…